The draft version stated the possession or transfer of the weapons or the magazines would be criminalized with exceptions under the initiative.

A ballot title for a measure is restricted to 15 words and must give the subject matter, according to the state Department of Justice.

The initiative that petitioners are working to get on the November ballot would define assault weapons as certain semi-automatic rifles and pistols that use detachable magazines and have other military-style features.

In addition to restricting assault weapons, the initiative would ban the manufacture and sale of magazines that hold more than 10 rounds of ammunition. Law enforcement and military personnel would be exempt.

Existing gun owners would be required to register with the state and pass criminal background checks. Failure to do so would result in criminal prosecution.

The office of state Attorney General Ellen Rosenblum reworked the caption and the explanation of the initiative's effects following the release of the draft title in April.

The state Department of Justice reviewed the more than 1,000 comments, department lawyer Denise G. Fjordbeck said in a letter to the Secretary of State's office Wednesday.

"While many of the comments simply stated support or opposition to the proposed measure, many hundreds suggested specific language for use in the ballot title," Fjordbeck said.